Heterocyclic compound is a major class of organic chemical compounds characterized by some or all of the atoms in their molecules are joined in rings containing atleast one atom of an element other than carbon.

CAS Number
119532-26-2(HCl Salt)
Alternate CAS Number
41202-77-1(Freebase)
CAS Number
1008531-60-9(HCl Salt); 1428331-96-7 (hydrate) ; 2389989-55-1 (2HCl salt)
CAS Number
545338-89-4
Alternate CAS Number
2771193-10-1(Succinate Salt)
CAS Number
1293489-71-0(freebase)
Alternate CAS Number
1293342-91-2(HCl Salt); 1293343-91-5(HBr)